I agree with this, totally. Also, people tend to experience bipolar a little differently sometimes but I'm diagnosed as bipolar II. I really find it hard to put into words how low my lows can get, when I'm off my meds. And it can last for days, weeks. It's anything but cool, or fun for me, I'm completely miserable.What you say there is actually true. You do feel more confident when you're manic. You can get into relationships or just have a lot of sex etc because the anxiety is a lot less. But things like that can get out of control very easily - you can get involved with people that you normally wouldn't if you weren't manic - plus do a lot of other things that can get you into big trouble.
I don't really feel comfortable talking about some of those things on this forum - but you should know that it's not always as pleasant as you might think it is now.